[squeak-dev] Separating Morphic and MVC

Juan Vuletich juan at jvuletich.org
Thu Aug 6 13:01:03 UTC 2009


Hi Andreas!

Andreas Raab wrote:
> Andreas Raab wrote:
>> I very much like what you've done with the editors. Is it correct 
>> that TextEditor is effectively protocol compatible with the old 
>> TextMorphEditor? If so, what do you think about bringing this into 
>> Squeak and phase out TextMorphEditor? Would this be doable or do you 
>> foresee any problems due to other changes that you might have done? 
>> From what I can see it looks as if this should be possible while 
>> preserving all the Unicode and m17n-goodness that I don't want to 
>> give up for Squeak. But boy, I would like to finally cut the Gordian 
>> knot called ParagraphEditor that ties Morphic and MVC together at the 
>> hip ;-)
>
> So I did some more investigation (and a few quick experiments the 
> results of which you can find in the trunk) and I am now convinced 
> that we can separate Morphic and MVC and unload MVC in a fully 
> reloadable form. The key is (of course) the text editors. I think the 
> plan for unloading MVC goes as follows:
>
> 1) Load the Cuis text editors; start using them. There is some work 
> needed for the usual programming shortcuts and a few fixes here and 
> there (mostly due to the SmalltalkImage current madness) but really we 
> mostly just need to start using them and fix issues as they come up.
>
> 2) Create a new category Kernel-Models which include Model, 
> StringHolder, and ValueHolder. Move ParagraphEditor and other 
> Kernel-ST 80 Remnants back into ST80.
>
> 3) Fix StringHolder>>codePaneMenu:shifted: not to use ParagraphEditor 
> directly but rather to include an inline version of the method.
>
> At this point I was able to unload MVC. After recompiling the entire 
> system it turned out that most of the Undeclared references were to 
> the various MVC menu classes (PopUpMenu, SelectionMenu, CustomMenu) 
> and FillInTheBlank - all of which are easily replaced by UIManager.
>
> The remaining references need a bit of actual work but I think we're 
> relally talking about less than 100 methods total that need to be 
> looked at. So it's entirely doable.
>
> Question: Anyone interested in helping with this little project? 
> Either by adding keyboard shortcuts to the Cuis editors or by helping 
> fixing references to obsolete MVC references, or by testing the 
> reloading of MVC?
>
> Cheers,
>   - Andreas

I'm willing to help. I can fix the issues in the Cuis text editors. Just 
point me to the last version of the new editors you have, and any 
instructions on how to update from the latest trunk.

Cheers,
Juan Vuletich



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